Another Helmet Picture

May 4, 1986

LONDON — Libyan television again has shown pictures of an aviator's helmet on a beach, saying it represented the ''remains'' of a second American airman lost in the U.S. air raid on Tripoli April 15. The broadcast, monitored by the British Broadcasting Corp., showed a battered white helmet with the inscription ''MPA-M'' on its crown washed ashore on the beach at Tripoli. The first helmet shown carried the name ''Lorence.'' An F-111 piloted by Capt. Fernando L. Ribas-Dominici, 33, of Puerto Rico, and carrying Capt. Paul F. Lorence, 31, of San Francisco as weapons officer, crashed in the sea.